refs #545 CSetting<T>::setAndSave to set and save a setting in one step.

src/blackmisc/settingscache.cpp

@@ -8,6 +8,7 @@
  */
 
 #include "settingscache.h"
+#include "logmessage.h"
 #include <QStandardPaths>
 
 namespace BlackMisc
@@ -33,6 +34,15 @@ namespace BlackMisc
         return saveToFiles(persistentStore(), keyPrefix);
     }
 
+    void CSettingsCache::saveToStoreByPacket(const CValueCachePacket &values)
+    {
+        CStatusMessage status = saveToFiles(persistentStore(), values.toVariantMap());
+        if (! status.isEmpty())
+        {
+            CLogMessage(this).preformatted(status);
+        }
+    }
+
     BlackMisc::CStatusMessage CSettingsCache::loadFromStore()
     {
         return loadFromFiles(persistentStore());